High-contrast dark resonance in σ+ - σ- optical field

High-contrast dark resonance in σ+ - σ- optical field

The amplitude of Λ resonance in alkali atoms is limited by perturbing cycling transitions in the case of D2 line or by existence of additional trapping states in the case of D1 line. We propose to eliminate these extra trapping states by using two counter‐propagating bichromatic fields of orthogonal...

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Veröffentlicht in:Laser physics letters 2004-10, Vol.1 (10), p.495-499
Hauptverfasser: Kargapoltsev, S. V., Kitching, J., Hollberg, L., Taichenachev, A. V., Velichansky, V. L., Yudin, V. I.
Format: Artikel
Sprache:eng
Schlagworte:
coherent population trapping
frequency stabilization
optical pumping
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Zusammenfassung:The amplitude of Λ resonance in alkali atoms is limited by perturbing cycling transitions in the case of D2 line or by existence of additional trapping states in the case of D1 line. We propose to eliminate these extra trapping states by using two counter‐propagating bichromatic fields of orthogonal circular polarizations. The experiment is in accordance with the theoretical proposal. The result refers to small‐size cells and is important for applications in miniaturized atomic clocks. (© 2004 by ASTRO, Ltd. Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.200410107